Blade retainer assembly

Details Blade retainer assembly Blade retainer assembly

1976-04-26

1977-07-05

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Blade received in well or slot

416221, F01D 532

Patent

active

040337057

ABSTRACT:
A retaining assembly is provided for locking radially extending blades in a rotor disc associated with a gas turbine engine. The assembly includes a pair of spaced apart lugs axially extending from one side of the disc to form an access gap for insertion of a blade tang into a dovetail slot in the rotor disc. A pair of axially aligned inwardly facing recesses are disposed in the lugs. A retaining member resides in the recesses and extends across the gap to preclude egress of the blade tang from the dovetail slot. The retaining member includes at least one axially extending protrusion adapted to radially overlap and abuttingly engage a radially inwardly facing abutment surface on the lugs.

REFERENCES:
patent: 2994507 (1961-08-01), Keller et al.
patent: 3137478 (1964-06-01), Farrell
patent: 3181835 (1965-05-01), Davis
patent: 3748060 (1973-07-01), Hugoson et al.
patent: 3888601 (1975-06-01), Glassburn

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